Potassium Carbonate → [5-(3,5-dichloro-phenylsulfanyl)-3-methyl-1-phenyl-1H-pyrazol-4-yl]-phenyl-methanone

HRID 350861Notes

Reaction equation

Cl[C:2]1[N:6]([C:7]2[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=2)[N:5]=[C:4]([CH3:13])[C:3]=1[C:14]([C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=1)=[O:15].[Cl:22][C:23]1[CH:24]=[C:25]([SH:30])[CH:26]=[C:27]([Cl:29])[CH:28]=1.C(=O)([O-])[O-].[K+].[K+]>CN(C)C=O>[Cl:22][C:23]1[CH:24]=[C:25]([S:30][C:2]2[N:6]([C:7]3[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=3)[N:5]=[C:4]([CH3:13])[C:3]=2[C:14]([C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=2)=[O:15])[CH:26]=[C:27]([Cl:29])[CH:28]=1

Participants

Conditions

Temperature: 60 °C

Procedure

A solution containing 2.0 g of (5-chloro-3-methyl-1-phenyl-1H-pyrazol-4-yl)-phenyl-methanone, 2.0 g of 3,5-dichlorothiophenol and 1.7 g of potassium carbonate in 50 ml of N,N-dimethylformamide was stirred at 60° C. for 19 h. The mixture was partitioned between 100 ml of water and 100 ml of dichloromethane. The organic layer was dried over magnesium sulphate, filtered and evaporated. The residue was purified by flash chromatography on silica gel using methanol/dichloromethane for the elution to give 2.2 g of [5-(3,5-dichloro-phenylsulfanyl)-3-methyl-1-phenyl-1H-pyrazol-4-yl]-phenyl-methanone as a yellow oil. Mass spectrum (ES) m/z 439 [M+H]+, 480 [M+H+CH3CN]+.

Workup

customThe mixture was partitioned between 100 ml of water and 100 ml of dichloromethane
dry with materialThe organic layer was dried over magnesium sulphate
filtrationfiltered
customevaporated
customThe residue was purified by flash chromatography on silica gel
washfor the elution

Sources & evidence

ORD record: ord-3c6d8f0e04c34c3bb2a11b4f21b7bcc2
Source dataset: uspto-grants-2007_02
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07183296B2

Reaction notes

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